NPPES file of Aug 9, 2026

Doctors and health care providers in Ames, IA

1,249 individual NPPES records list a practice address in Ames, 9th of 215 Iowa cities. The largest group is mental health counselor: 87, 7% of the city's records, against 5% across Iowa. Page 9 of 25.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Ames

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Ames in Iowa

  • Rank in Iowa9th of 215 cities by records
  • Share of the state2.6% of Iowa's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.3% of all records
  • Mental Health Counselor rank8th of the 10 Iowa cities with the most

Compared with Iowa as a whole, Ames has 3.7× the state's share of athletic trainer records and 0.47× its share of family nurse practitioner records.

Providers in Ames, alphabetically

  1. Olesya Grinenko, MD, PHDNeurology Physician1306345210
  2. Andrew GrinerOccupational Therapist1386370955
  3. Linnea GroszMental Health Counselor1386981660
  4. Clifford Gryte, MDAnatomic Pathology & Clinical Pathology Physician1265421549
  5. Mark Guffy, M.D.Hematology & Oncology Physician1982693289
  6. Ashley Guillaume, LMTMassage Therapist1295575421
  7. Kathyria Guillen, MS, LMHCMental Health Counselor1386299683
  8. Douglas Gunderson, DCChiropractor1811297351
  9. Anna Gunnerson, OTR/LOccupational Therapist1366324154
  10. Dean Gute, MDDiagnostic Radiology Physician1225144975
  11. Autumn GwinnAthletic Trainer1710626924
  12. Sumita Gyawali, ARNPNurse Practitioner1356001507
  13. Jordan Haak, MS, BCBA, LBABehavior Analyst1770199820
  14. Jamie Haaland, ARNPFamily Nurse Practitioner1942973110
  15. Sara Hackbart, LMFTMental Health Counselor1962739789
  16. Mary Hackbarth, ARNPFamily Nurse Practitioner1851847560
  17. Suhail Haddadin, MDNephrology Physician1881207215
  18. Audra Haglund, ARNP, CNMObstetrics & Gynecology Nurse Practitioner1730061185
  19. Jason Haglund, CADCAddiction (Substance Use Disorder) Counselor1700172640
  20. Kaysha Halbur, DNP, ARNP, FNP-CNurse Practitioner1871226423
  21. Therese Halbur, M.D.Pediatrics Physician1497744700
  22. Madison HallBehavior Technician1194409714
  23. Nicole HallSpeech-Language Pathologist1972209542
  24. Steven Hallberg, M.D.Nephrology Physician1720077035
  25. Carly Hamann, ATC, LATAthletic Trainer1417404104
  26. Karl HamoucheDiagnostic Radiology Physician1003309766
  27. Nicolas Hamouche, M.D.Ophthalmology Physician1922097252
  28. Justin Hampton, DDSGeneral Practice Dentistry1992878193
  29. Christopher Hanfelt, MPTPhysical Therapist1912977406
  30. Lindsay Hannapel, FNP-CFamily Nurse Practitioner1053874073
  31. Corianna HansenSpeech-Language Pathologist1619809050
  32. Emily Hansen, CADCAddiction (Substance Use Disorder) Counselor1578986089
  33. Kendall Hansen, RBTBehavior Technician1881393759
  34. Timothy Hansen, M.D.MOHS-Micrographic Surgery Physician1518109123
  35. Katie HansonOptometrist1568693273
  36. Rachel HansonClinical Social Worker1295072809
  37. John Hardie, MDRadiation Oncology Physician1073801148
  38. Rhonda HardingAthletic Trainer1205377769
  39. Donald Harker, D.O.Anesthesiology Physician1508179615
  40. Mariah HarlanBehavior Analyst1972220077
  41. Gerald Harlow, LBSWClinical Social Worker1588847081
  42. Kimberly Harmon, DPMPodiatrist1063411387
  43. Dylan HarmsAthletic Trainer1134710387
  44. Alexis HarpenauSpeech-Language Pathologist1417792854
  45. Dallin Harper, DOHospitalist Physician1750010039
  46. Kay Harper, PHARMDPharmacist1619550605
  47. Andrew HarrisPhysician Assistant1922732908
  48. Chad Harswick, MDFamily Medicine Physician1396734521
  49. Dana Hartwigsen, DOPediatrics Physician1255453767
  50. Amber Harvey, PTAPhysical Therapy Assistant1972573467

The largest Iowa cities

  1. Iowa City7,163
  2. Des Moines5,538
  3. Cedar Rapids2,949
  4. West Des Moines2,201
  5. Davenport2,058

All of Iowa →

How to read this directory

Ames, Iowa appears in the CMS National Plan and Provider Enumeration System with 1,249 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Ames - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Ames practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Ames is weighted toward Mental Health Counselor (87 clinicians, followed by Physical Therapist with 76 and Athletic Trainer with 65). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Iowa's population, Ames reports roughly 38.9 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Ames patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Ames, IA?

There are 1,249 registered healthcare providers in Ames, IA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Ames?

The most common specialties in Ames are Mental Health Counselor, Physical Therapist, Athletic Trainer, Behavior Technician, Student in an Organized Health Care Education/Training Program. Mental Health Counselor has the most providers with 87.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.